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Q. No.Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
| 1. | Glucose-6-phosphate |
| 2. | Fructose 1, 6-bisphosphate |
| 3. | Pyruvic acid |
| 4. | Acetyl Co-A |
Subtopic: Â THE RESPIRATORY BALANCE SHEET |
 79%
From NCERT
NEET - 2016
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What is the role of NAD+ in cellular respiration?
| 1. | It functions as an enzyme |
| 2. | It functions as an electron carrier |
| 3. | It is a nucleotide source for ATP synthesis |
| 4. | It is the final electron acceptor for anaerobic respiration |
Subtopic: Â Aerobic Respiration |
 58%
From NCERT
NEET - 2018
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Which of these statements is incorrect?
| 1. | Enzymes of the TCA cycle are present in the mitochondrial matrix. |
| 2. | Glycolysis occurs in the cytosol. |
| 3. | Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. |
| 4. | Oxidative phosphorylation takes place in the outer mitochondrial membrane. |
Subtopic: Â Oxidative Phosphorylation |
 77%
From NCERT
NEET - 2018
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Oxidative phosphorylation is
| 1. | formation of ATP by transfer of phosphate group from a substrate to ADP |
| 2. | oxidation of phosphate group in ATP |
| 3. | addition of phosphate group to ATP |
| 4. | formation of ATP by energy released from electrons removed during substrate oxidation |
Subtopic: Â Oxidative Phosphorylation |
 74%
From NCERT
NEET - 2016
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Which statement is wrong for Krebs' cycle?
| 1. | There is one point in the cycle where FAD+ is reduced to FADH2 . |
| 2. | During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesized. |
| 3. | The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid. |
| 4. | There are three points in the cycle where NAD+ is reduced to NADH + H+. |
Subtopic: Â Kreb's Cycle |
 74%
From NCERT
NEET - 2017
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Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?
1. Frutose1, 6 - bisphosphate
2. Pyruvic acid
3. Acetyl CoA
4. Glucose- 6 -phosphate
Subtopic: Â Amphibolic Nature of Respiration |
 87%
From NCERT
AIPMT - 2013
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The energy-releasing metabolic process in which substrate is oxidized without an external electron acceptor is called:
1. glycolysis
2. fermentation
3. aerobic respiration
4. photorespiration
Subtopic: Â Fermentation |
 57%
From NCERT
AIPMT - 2010
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Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
1. Phosphofructokinase
2. Aldolase
3. Hexokinase
4. Enolase
Subtopic: Â Glycolysis |
 90%
From NCERT
NEET - 2019
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Subtopic: Â Respiratory Quotient |
 82%
From NCERT
NEET - 2019
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Which of the following statements regarding mitochondria is incorrect?
| 1. | Mitochondrial matrix contains single circular DNA molecule and ribosomes. |
| 2. | Outer membrane is permeable to monomers of carbohydrates, fats, and proteins. |
| 3. | Enzymes of electron transport are embedded in the outer membrane. |
| 4. | Inner membrane is convoluted with infoldings. |
Subtopic: Â ETS |
 73%
From NCERT
NEET - 2019
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